Improvement in wrenches



attnt @fitte ROIlLIN WHITE, OF LOVWELL, MASSACHUSETTS.

A Letters 'Patent No. 112,101, dated February 21, 1871.

IMPROVEMENT IN WRENCHES.

The Bchedule'referred to in these vLetzteres Patent and making pari: ofthe same.

To all whom it may concern:

Be it known that I7 ROLLIN .WHlTm of Lowell, in the county of Middlesexand in the State ot' Massachusetts, have invented certain new and usefulImprovements in IVrenches; and do hereby declare that the following is afull, clear, and exact description thereof', reference being had to theaccompanying drawing and to the letters of reference marked thereonmaking a partof this specication.

The nature ot' my invention consists in the construction andarrange-ment of` a wrench, as will be hereinafter more fully' set forth.

In order to enable others skilled in the art to .which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure 1 is a side view of my Wrench, and

Figure 2 isv an enlarged perspective View ofthe movable part or chuck ofthe wrench.

A represents the handle, the center of which is attcned and out out inone edge, as shown in g. l.

From the sides of' this V-shaped cut,recesses or V-shapcd chambers leadthrough the handle, and terminating in round holes through the otheredge of the atteued'central portion ofthe handle. Iihe outer side oteach of these recesses runs at right angles through the handle, and issemicircular or semi'tubular in form. These recesses are shown bydot-ted vlines in fig. 1.

' B represents the movable y -part or chuck of my Wrench.

It consists of aceutral plate, a, cut with a V-shaped notch tocorrespond with the shape ofthe attened portion ofthe handle, the jawsfitting into the recesses of the-handle, thus forming, atwhatever pointit may be set, a square hole.

The sides of the plate a are extended, forming screwrods b l), whichpass entirely through the handle, and are provided with nuts, d d, bymeans of which the chuck may be set at any point desired, to suit anysize nut, bolt,'&c.

On each side of the plate a is attached a plate e,

constructed as shown in iig. 2, so as to make the outer tened portion ofthe handle.

It is, of course, evident that the entire chuck B may he made of onepiece, if so desired; and in place of' the screw-rods l) l) I may usetwo round rods as guides, with a cross-piece connectingr them, and ascrew through said cross-piece, to bear against the edge of' the handleand thereby adjust the chuck.

Having thus fully described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

1. Y The chuck B, constructed, as described, ot' a central plate, a, cutout andY provided with the screwrods b l), and side-plates e c, allsubstantially as and for the purposes herein set forth.

2. The combination of the handle A and adjustable or movable chuck B,constructed and arranged substantially as andfor the purposes hereinset,- forth.

In testimony that I claim the foregoing I have hercunto set my hand this11th day of January, 1871.

Witnesses: ROLLIN WHITE.

C. L. Eventi', C. M. ALEXANDER.

end of the chuck ot' the saine thickness as the tlat-

